用C＃中的非原始类型重新创建C ++联合类型的对齐错误

Question

我在C ++中有一个简单的联合体（字节数组和一个短整数），试图将其移植到C＃并Could not load type ... Union ... because it contains an object field at offset 0 that is incorrectly aligned or overlapped by a non-object field.联合体Could not load type ... Union ... because it contains an object field at offset 0 that is incorrectly aligned or overlapped by a non-object field. 我怀疑我的实现无法正常工作，因为我将数组作为结构成员之一。

现有的C ++联合：

union {
    char    c[2];
    short        data;
} u;

尝试C＃实现：

[StructLayout(LayoutKind.Explicit, Size =2)]
public struct Union
{
    [MarshalAs(UnmanagedType.LPArray)]
    [FieldOffset(0)]
    public byte[] c;
    [FieldOffset(0)]
    public short data;
}

之前回答过类似的问题，但它似乎仅适用于原始类型： C＃中的C ++联合

先感谢您。

Answer 1

您是否尝试过“ StructLayout（LayoutKind.Explicit，Size = 2，Pack = 1）”？ C＃似乎有问题，默认为4字节打包大小。